In which a young prince of the natives, struck by our power and honourable dealings, places his trust and fealty with us, leading to an expedition inland with prisoners and a determined caravan, guided by mutual signs and newly formed bonds. We traverse a verdant region by river and land, witness the wondrous obedience of beasts, and at length confront a mighty cataract, all the while bridging the gaps between strange tongues and customs in this extraordinary and stirring venture.